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Finding the Fourth Proportional to 82,653.63, 123,967.92 and 26,487.81

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Solution

The fourth proportional to 82,653.63, 123,967.92 and 26,487.81 is: 39,727.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,653.63 : 123,967.92 = 26,487.81 : x
  2. Step 2: Convert to fraction form
    82,653.63/123,967.92 = 26,487.81/x
  3. Step 3: Cross multiply
    82,653.63x = 123,967.92 × 26,487.81
  4. Step 4: Simplify right side
    82,653.63x = 3,283,638,711.06
  5. Step 5: Solve for x
    x = 3,283,638,711.06/82,653.63
  6. Step 6: Final answer
    x = 39,727.70

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.